Processing Machinery
5 مشاهدة
PA66 fan shroud
ظاهرة المشكلة
Cooling fan shroud fixing ears break during vibration testing
تحليل الأسباب
The shroud is excited by engine vibration, stress concentrates at the fixing ear root, and fatigue accumulates to fracture; during on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience
الحل
Add fillets and reinforcing ribs at fixing ear roots; select fatigue-resistant reinforced grades; verify according to random vibration spectrum; after adjustment, take continuous samples to verify the effect, confirm stability before resuming mass production
الخلاصة الأساسية
Vibration part fixing structures are designed and verified according to fatigue spectrum; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!